Startup – Mistakes to Avoid by Rivelino Montenegro · March 22, 2016 Very good article: http://www.entrepreneur.com/article/270505 WhatsApp
4 Ways to Overcome Your Unreasonable Fears September 2, 2015 by Rivelino Montenegro · Published September 2, 2015 · Last modified April 21, 2017
First impression February 8, 2015 by Rivelino Montenegro · Published February 8, 2015 · Last modified March 4, 2015